Is shower grout mold in Dubai a professional job?« Back to Previous Page

The grout between the tiles in my master bathroom shower has started turning black and green, especially in the corners. It's been getting worse over the last couple of months since the weather got more humid. I'm in an older building in Bur Dubai and I'm worried it's more than just surface mildew. Should I hire a professional mold remediation company here in Dubai, or is this something a regular cleaner can handle, and what kind of cost am I looking at for a proper fix?
Posted by Jessica Johnson
Asked on May 4, 2026 7:10 am
Black and green discoloration in shower grout, especially during humid months, is very common in Dubai. It often starts as surface mildew but can indicate deeper mold growth, particularly in older buildings where water may have seeped behind the tiles.

For a small, surface-level patch, a thorough cleaning with a dedicated grout cleaner and a stiff brush can be effective. However, if the discoloration is widespread, keeps returning quickly after cleaning, or is in the corners where walls meet (a common spot for persistent moisture), the mold is likely growing beneath the surface or within the wall cavity. In these cases, a regular cleaner cannot address the root cause.

The high humidity and constant use of AC in Dubai creates a perfect environment for mold to thrive behind tiles where condensation accumulates. A professional inspection is recommended to assess the extent of the problem. They can use moisture meters and, if necessary, take samples for lab analysis to identify the species, which determines the proper remediation protocol. This is crucial for determining if it's a job for a specialized cleaning or a full remediation that involves removing tiles to dry and treat the underlying structure.

The cost for a proper fix varies significantly. A simple surface clean is relatively minor, while a full remediation project that involves tile removal, wall drying, and re-grouting is a more substantial investment. For an accurate assessment, it's best to request a site evaluation from a certified provider who can document the moisture levels and provide a scope of work.
Posted by Sani Admin
Answered on May 5, 2026 6:24 am